JB/T 5908-1991 Sampling inspection and packaging of main parts of electrostatic precipitator
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB5908-91
Specification for Sampling Inspection and Packaging, Transportation and Storage of Main Components of Electrostatic Precipitator
Published on December 25, 1991
Published by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Implementation on October 1, 1992
Mechanical Industry Standard of the People's Republic of China
Specification for Sampling Inspection and Packaging, Transportation and Storage of Main Components of Electrostatic Precipitator
1 Subject Content and Scope of Application
JB590891
This standard specifies the classification and sampling of main components of electrostatic precipitator, the items and methods of inspection, the packaging, transportation and storage requirements of main components of electrostatic precipitator,
This standard applies to the main components of electrostatic precipitator. Non-main components can also be used as a reference. 2 Reference standards
ZBJ88001.3
JB5906
GB2828
Technical conditions for electrostatic precipitators
General technical conditions for C-type anode plates for electrostatic precipitatorsBatch inspection counting sampling procedures and sampling tables (applicable to inspection of continuous batches)Basic forms and dimensions of manual arc welding jointsBasic forms and dimensions of submerged arc welding jointsGeneral technical conditions for painting
JB/ZQ4000.10
GB 1413
GB1843
GB6388
GB4879
Container dimensions and rated weight
Minimum internal dimensions of general containers
Packaging, storage and transportation pictorial marks
Shipping marks for transport packaging
Rust-proof packaging
3 Inspection of main parts of electrostatic precipitator
3.1 The main parts of the electrostatic precipitator are composed of bottom beams, columns, beams, anode plates, cathode wires, and cathode frames. 3.2 The dimensions and geometric tolerances of the main parts of the electrostatic precipitator shall be inspected in accordance with the drawings and processes approved by the prescribed procedures and the relevant provisions of ZBJ88001.3 and JB5906. For those without clear requirements in the drawings and processes, the inspection shall be carried out in accordance with the unnoted tolerance requirements in ZBJ88001.3. 3.3 The inspection method of the main parts of the electrostatic precipitator is shown in Appendix A (supplement). 3.4 Inspection contents of main parts of electrostatic precipitator
3.4.1 Main inspection items of main parts
3.4.1.1 Bottom beam
The length and height of the bottom beam;
The hole size of the connection hole between the bottom beam and the column; the hole size of the connection hole between the bottom beam and the bottom beam; the shape and position tolerances required in the drawings;
The weld quality of the working weld.
3.4.1.2 Column
Approved by the Ministry of Machinery and Electronics Industry on December 25, 1991 and implemented on October 1, 1992
The length of the column;
JB5908--91
The hole size of the connection hole between the column and the bottom beam, and the column and the beam; the position size of the vibration hole;
The shape and position tolerances required in the drawings;
The weld quality of the working weld.
3.4.1.3 Main beam
The location and size of the main beam hanging hole;
The location and size of the hole connecting the main beam and the column;
The shape and position tolerances required in the drawing;
The weld quality of the working weld.
Anode plate
The width and thickness of the anode plate;
The location and size of the hanging hole (anode plate with hanging holes);
The surface quality of the anode plate.
3.4.1.5 Cathode wire
The length of the cathode wire;
The spot welding strength of the cathode wire;
The shape and position tolerances required in the drawing;
The surface quality of the cathode wire.
Cathode frame
Tolerance of diagonal line of frame;
Hole size for matching with cathode wire;
Geometric tolerance required in drawing;
Quality of weld.
3.4.2 Inspection method of main parts
3.4.2.1 Bottom beam, column and beam are inspected in full. 3.4.2.2 Sampling of anode plate, cathode wire and cathode frame shall comply with the normal one-time sampling plan in GB2828, and the inspection level IL=IIII. AQL=2.50 for anode plate and cathode wire, and AQL=4.00 for cathode frame. (The above qualified quality level value refers to the number of unqualified products per 100 units) If the user has other requirements, the sampling plan jointly agreed upon by the user and the supplier shall be used for inspection. The batch is the number of anode plates, cathode wires and cathode frames required for one set of electrostatic precipitator. 4 Packaging, transportation, purchase and storage requirements
4.1 Packaging
4.1.1 Products must be dried in oil, inspected and qualified, and protected according to the requirements of GB4879 before they can be packaged according to the packing list. 4.1.2 Under the specified storage and transportation conditions, it should be ensured that the products will not be damaged or leaked due to poor packaging within half a year. Special requirements shall be implemented according to the agreement between the supply and demand parties.
4.1.3 Product packaging should adopt different packaging types according to the main characteristics and storage and transportation conditions. Commonly used packaging types include box packaging, bulk packaging, bundle packaging and naked packaging.
4.1.3.1 For products transported in containers, their packaging should meet the requirements of containers, and the overall dimensions, weight and minimum internal dimensions of the containers should meet the relevant provisions of GB1413 and GB1843. 4.1.3.2 The overall dimensions and weight of the packaged products should meet the regulations of the transportation department that goods transportation shall not exceed the limit and overweight. 4.1.3.3 When special vehicles are needed for the railway transportation of extra-large and extra-heavy items, a loading reinforcement structure diagram should be drawn, and the maximum external dimensions and the center of gravity position should be indicated.
JB590891
4.1.4 Anode plates, cathode wires and cathode small frames should be packed in boxes or in bulk, and beams, columns and bottom beams can be packed naked. Anode plates should be packed to prevent deformation.
4.1.4.1 When packing anode plates, cathode wires and cathode small frames, the workpieces should be prevented from colliding and contaminating. Goods must be stacked neatly in the box. 4.1.4.2 Anode plates and cathode wires should be packed in rainproof packaging, and waterproof materials should be used when packaging. The waterproof materials mainly include petroleum asphalt felt, plastic film or plastic composite paper. The waterproof material should be flat and close to the inner wall of the packaging box, and the whole piece of material should be used as much as possible. When overlapping is necessary, welding or bonding can be used, and the overlapping width should not be less than 60mm. 4.1.5 Profiles and simple structures suitable for bundling packaging can be bundled, as shown in Figure 1. 4.1.5.1 When bundling, if the length of the bundle is less than 2m, it can be bundled at two places. If the length exceeds 2m, it can be bundled at both ends and every 1.5m. 4.1.5.2 The bundling material can be galvanized lead wire or steel belt. For workpieces with higher requirements, when bundling, the lead wire or steel belt is lined with linen, rubber or petroleum asphalt felt.
5 The packaged products must be labeled. The label style is shown in Figure 2. The name, quantity and specifications of the goods should be consistent with the packing list. Cushioning material
Packing material
Cushioning material
Packing material
Equipment drawing number:
Part name:
Workpiece drawing number:
Workpiece name:
Packing list serial number:
4.1.7 Anti-rust packaging shall comply with the provisions of GB4879. 4.1.8 The text, logo and pattern on the outside of the packaging box shall comply with the provisions of GB6388 and GB191. 4.1.8.1 Main marking content:
Product name/equipment model;
Box (piece) serial number/total number of boxes (pieces);
Net weight/gross weight (kg);
Overall dimensions (length×width×height, cm);
Destination station (port) and consignee;
Departure station (port) and consignor,
4.1.8.2 There are six types of attention marks (see Figure 3 and Figure 8): sensitive to moisture
sensitive to moisture mark
handle with care
Figure 5 handle with care mark
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upward mark ||tt ||Indoor storage
Figure 6 Indoor storage mark
Figure 7 Hoisting position mark
4.1.8.3 Marking method:
JB590891
Figure 8 Gravity center mark
For boxed parts, the main mark and note mark should be sprayed or written manually on one side and one end of the box surface with non-fading paint using a stencil;
For bulk, bundled and bare parts, the mark can be directly sprayed or written manually on the workpiece using a stencil, or the sprayed marked wooden board or metal label can be attached or hung on the product, or it can be pasted with a self-adhesive label with a mark printed on it. 4.1.9 Packing information
4. 1. 9.1
The manufacturer shall send the following technical information to the user or installation unit in advance or together with the product: general packing list or delivery list;
Packing list;
Product certificate of conformity;
Product installation and operating instructions;
Product installation diagram:
Product wearing parts and spare parts list.
4.1.9.2Except the packing list of the packaging box (piece), the remaining information shall be mailed in advance or sealed in a plastic bag and fixed in the first box of the product.
4.1.9.3The packing list in each packaging box shall be sealed in a plastic bag and fixed on the end face of the packaging box or other conspicuous position in the box. The packing list of bulk, bundled and single pieces shall be mailed to the consignee at the same time as the product is shipped. 4.1.9.4The number of the packing list is expressed in fractional form, with the numerator being the box (piece) serial number and the denominator being the total number of boxes (pieces). 4.2 Transportation
4.2.1 The shipment of main parts shall comply with the relevant provisions of Article 4.1.3. 4.2.2 The goods must be hoisted according to the marked position, and a reasonable hoisting position should be selected for unmarked workpieces. 4.2.3 The goods must be placed stable, leveled and fastened during transportation. 4.2.4 For stacked goods, wooden blocks should be placed between the workpieces, and the positions of the upper and lower wooden blocks must be reasonably consistent. The distance between the wooden blocks should be greater than one-third of the length of the workpiece.
4.2.5 The center of gravity of the workpiece should be at the bottom when loading the goods. 4.3 Purchase and storage
4.3.1 For on-site storage, the site should be flat, free of water accumulation, and no water accumulation is allowed to soak the workpieces. 4.3.2 When storing beams, columns and bottom beams, the bottom surface must be leveled, and no other objects should be stacked on top. 4.3.3 The packaging boxes of plates and wires are allowed to be stacked. There are a maximum of three layers for plates and a maximum of five layers for wires. 4.3.4 Anode plates, cathode wires and cathode small frames should be stored indoors. Rain protection measures must be taken when storing outdoors. 5
JB5908-91
Appendix A
Testing methods for main parts of electrostatic precipitator
(Supplement)
A1 For all main parts of electrostatic precipitator, the size, shape and position tolerances shall be inspected according to the drawings, processes and standard requirements approved by the prescribed procedures. For those without clear requirements in the drawings and processes, they shall be inspected according to the unnoted tolerances in ZBJ88001.3. A2 Inspection of nominal dimensions
Inspection of nominal dimensions shall be measured with 2, 10, 15 and 20m steel tape measures according to their sizes. The tape measures shall be naturally tightened during measurement. For the two end faces with high requirements, a ruler shall be used, and the tape measure at the measuring end shall slide left and right to obtain the actual distance. A3 Inspection of bolt hole spacing
A3.1 For holes that have a matching relationship with each other, the position tolerance of any hole shall not exceed the formula (A1): (Dmin - Damx)
Where: T position tolerance value, mm;
Dmi minimum diameter of the light hole, mm;
Dmx—maximum diameter of the bolt, mm.
A3.2 When measuring the hole position, one hole should be used as the reference. For the hole spacing that is related to each other, continuous measurement should be made. It is not allowed to measure step by step with two holes as units. If the roundness tolerance of the hole is obvious, the error caused by the roundness deviation should be eliminated. A4 Straightness Inspection
A4.1 When measuring the straightness of any component, the measured element should be placed perpendicular to the horizontal plane, that is, vertically. A4.2 Testing tools can use tensioning machine thin steel wire or powder wire, equal height iron, ruler, etc., tighten the steel wire or powder wire, pad equal height iron on both ends, use a ruler to measure the distance between the wire and the actual measured edge, and the difference between the maximum and minimum values is its straightness error. A5' Flatness Test
A5.1 When measuring a larger or longer plane, that is, a plane that needs to be measured with a steel wire or powder wire, the plane must be placed perpendicular to the horizontal plane. A5.2 Testing tools can use tensioning machine thin steel wire or powder wire, equal height iron, steel ruler and feeler gauge, etc. A5.3 When measuring a narrow and long plane (width less than 300mm, length greater than 2000mm), the provisions of Chapter A4 can be used for measurement, and it is required to measure the straightness of several places on the plane, and then find the maximum difference, which is the flatness error of the plane. A5.4 When measuring a large plane, the diagonal method can be used. That is, take a proper point at each of the four corners of the plane, place an equal-height iron, draw the diagonal cross line, measure the gap at the intersection of the two lines, and use the highest diagonal line as the reference, raise the other two diagonal points together (the heightened thickness must be consistent, just the value between the intersections), and then use these four points as the base points, draw lines in the length, width, and diagonal directions, take several points on each line, try to measure the extreme value on the line, and find the difference between the maximum and minimum values of all the measured values, which is the flatness error of the plane. As shown in the figure below, when there is an actual plane W, the ideal plane (i.e., the measurement base plane) is the line connecting the two points A and C (the deviation value of the two points is zero, and the deviation value here has excluded the influence of the equal-height iron) and is parallel to the line connecting the two points A and C (the deviation values of the two points are equal), so the flatness of the plane is 5-(-12)=17.
A5.5·To measure a small plane, you can use a steel ruler (1m) directly against the plane to be measured, and use a feeler gauge to measure the gap size. The maximum value is taken as the flatness error.
A6 Parallelism test
Actual plane W
JB5908—91
A,*A,'-A,'-1A,*+A,'+$
B,*+1 B,'++B,'1B,\-+B,'-1
C,*++ C,*-s C,*+* C, +5. C,**Figure A1
A6.1 Parallelism can be tested using a steel tape measure, steel ruler, powder line, high-speed rail, etc. A6.2 First use a steel ruler or powder line to find the ideal plane of the actual reference surface, then select several points with the ideal plane as the reference point, measure the distance to the measured plane, and find the extreme value difference in the value as the parallelism error of the element. Verticality test
A7.1 Small parts (within 500mm) can be measured with a wide ruler and a feeler gauge. A7.2 For large-scale measurement, steel tape measure, powder line, etc. can be used, and the diagonal method or triangle method can be used for measurement. A8 Anode plate inspection
The anode plate is placed horizontally on the rolling mill roller with a special fixture and perpendicular to the roller plane. A8.2
The inspection method is shown in Chapters A2 to A7. The inspection method for distortion is referred to the provisions of Chapter A7. Cathode line inspection
The cathode line is placed horizontally on a special inspection platform and perpendicular to the inspection platform. The inspection method is shown in Chapters A2 to A7.
During the inspection, a vernier height gauge with an apparent error of 0.02mm is used. Inspection of welding quality
The size and form of the weld should comply with the requirements of the drawing, and the height of the weld leg should be measured with a special weld inspection ruler. The weld joint should comply with the relevant provisions of GB985 and GB986. The weld quality should comply with the provisions of ZBJ88001.3. Surface quality inspection
Before painting, rust removal inspection should be carried out. Combined with the original rust level of the steel surface, the rust removal level should be analyzed and evaluated in accordance with JB/ZQ4000.10.
A11.2 The coating thickness inspection and coating adhesion inspection should be carried out in accordance with the relevant provisions of JB/ZQ4000.10. Additional remarks:
This standard was proposed and managed by Zhuji Electrostatic Precipitator Research Institute. This standard was drafted by Zhejiang Electrostatic Precipitator General Factory. The drafters of this standard were Bian Bingmiao and Bian Shimao. People's Republic of China
Mechanical Industry Standard
Specification for Sampling Inspection of Main Parts of Electrostatic Precipitator
and Packaging, Transportation and Storage
JB590891
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing
Postal Code 100081)
No Reproduction
Copyright reserved
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
Sheet 3/4
Word Count 14000
First Edition in February 1992
First Printing in February 1992
Print Quantity 00.001-1000
Price 1.20 Yuan
No. 04981 The shipment of main parts shall comply with the relevant provisions of Article 4.1.3. 4.2.2 The goods must be hoisted according to the marked position, and a reasonable hoisting position should be selected for unmarked workpieces. 4.2.3 The goods must be placed stable, leveled and fastened during transportation. 4.2.4 For stacked goods, wooden blocks should be placed between the workpieces, and the positions of the upper and lower wooden blocks must be reasonably consistent. The distance between the wooden blocks should be greater than one-third of the length of the workpiece.
4.2.5 The center of gravity of the workpiece should be at the bottom when loading the goods. 4.3 Purchase and storage
4.3.1 For on-site storage, the site should be flat, without water accumulation, and no water accumulation is allowed to soak the workpiece. 4.3.2 When storing beams, columns and bottom beams, the bottom surface must be leveled, and no other objects should be stacked on top. 4.3.3 The packaging boxes of plates and wires are allowed to be stacked. There are a maximum of three layers for plates and a maximum of five layers for wires. 4.3.4 Anode plates, cathode wires and cathode small frames should be stored indoors. Rain protection measures must be taken when storing outdoors. 5
JB5908-91
Appendix A
Testing methods for main parts of electrostatic precipitator
(Supplement)
A1 For all main parts of electrostatic precipitator, the size, shape and position tolerances shall be inspected according to the drawings, processes and standard requirements approved by the prescribed procedures. For those without clear requirements in the drawings and processes, they shall be inspected according to the unnoted tolerances in ZBJ88001.3. A2 Inspection of nominal dimensions
Inspection of nominal dimensions shall be measured with 2, 10, 15 and 20m steel tape measures according to their sizes. The tape measures shall be naturally tightened during measurement. For the two end faces with high requirements, a ruler shall be used, and the tape measure at the measuring end shall slide left and right to obtain the actual distance. A3 Inspection of bolt hole spacing
A3.1 For holes that have a matching relationship with each other, the position tolerance of any hole shall not exceed the formula (A1): (Dmin - Damx)
Where: T position tolerance value, mm;
Dmi minimum diameter of the light hole, mm;
Dmx—maximum diameter of the bolt, mm.
A3.2 When measuring the hole position, one hole should be used as the reference. For the hole spacing that is related to each other, continuous measurement should be made. It is not allowed to measure step by step with two holes as units. If the roundness tolerance of the hole is obvious, the error caused by the roundness deviation should be eliminated. A4 Straightness Inspection
A4.1 When measuring the straightness of any component, the measured element should be placed perpendicular to the horizontal plane, that is, vertically. A4.2 Testing tools can use tensioning machine thin steel wire or powder wire, equal height iron, ruler, etc., tighten the steel wire or powder wire, pad equal height iron on both ends, use a ruler to measure the distance between the wire and the actual measured edge, and the difference between the maximum and minimum values is its straightness error. A5' Flatness Test
A5.1 When measuring a larger or longer plane, that is, a plane that needs to be measured with a steel wire or powder wire, the plane must be placed perpendicular to the horizontal plane. A5.2 Testing tools can use tensioning machine thin steel wire or powder wire, equal height iron, steel ruler and feeler gauge, etc. A5.3 When measuring a narrow and long plane (width less than 300mm, length greater than 2000mm), the provisions of Chapter A4 can be used for measurement, and it is required to measure the straightness of several places on the plane, and then find the maximum difference, which is the flatness error of the plane. A5.4 When measuring a large plane, the diagonal method can be used. That is, take a proper point at each of the four corners of the plane, place an equal-height iron, draw the diagonal cross line, measure the gap at the intersection of the two lines, and use the highest diagonal line as the reference, raise the other two diagonal points together (the heightened thickness must be consistent, just the value between the intersections), and then use these four points as the base points, draw lines in the length, width, and diagonal directions, take several points on each line, try to measure the extreme value on the line, and find the difference between the maximum and minimum values of all the measured values, which is the flatness error of the plane. As shown in the figure below, when there is an actual plane W, the ideal plane (i.e., the measurement base plane) is the line connecting the two points A and C (the deviation value of the two points is zero, and the deviation value here has excluded the influence of the equal-height iron) and is parallel to the line connecting the two points A and C (the deviation values of the two points are equal), so the flatness of the plane is 5-(-12)=17.
A5.5·To measure a small plane, you can use a steel ruler (1m) directly against the plane to be measured, and use a feeler gauge to measure the gap size. The maximum value is taken as the flatness error.
A6 Parallelism test
Actual plane W
JB5908—91
A,*A,'-A,'-1A,*+A,'+$
B,*+1 B,'++B,'1B,\-+B,'-1
C,*++ C,*-s C,*+* C, +5. C,**Figure A1
A6.1 Parallelism can be tested using a steel tape measure, steel ruler, powder line, high-speed rail, etc. A6.2 First use a steel ruler or powder line to find the ideal plane of the actual reference surface, then select several points with the ideal plane as the reference point, measure the distance to the measured plane, and find the extreme value difference in the value as the parallelism error of the element. Verticality test
A7.1 Small parts (within 500mm) can be measured with a wide ruler and a feeler gauge. A7.2 For large-scale measurement, steel tape measure, powder line, etc. can be used, and the diagonal method or triangle method can be used for measurement. A8 Anode plate inspection
The anode plate is placed horizontally on the rolling mill roller with a special fixture and perpendicular to the roller plane. A8.2
The inspection method is shown in Chapters A2 to A7. The inspection method for distortion is referred to the provisions of Chapter A7. Cathode line inspection
The cathode line is placed horizontally on a special inspection platform and perpendicular to the inspection platform. The inspection method is shown in Chapters A2 to A7.
During the inspection, a vernier height gauge with an apparent error of 0.02mm is used. Inspection of welding quality
The size and form of the weld should comply with the requirements of the drawing, and the height of the weld leg should be measured with a special weld inspection ruler. The weld joint should comply with the relevant provisions of GB985 and GB986. The weld quality should comply with the provisions of ZBJ88001.3. Surface quality inspection
Before painting, rust removal inspection should be carried out. Combined with the original rust level of the steel surface, the rust removal level should be analyzed and evaluated in accordance with JB/ZQ4000.10.
A11.2 The coating thickness inspection and coating adhesion inspection should be carried out in accordance with the relevant provisions of JB/ZQ4000.10. Additional remarks:
This standard was proposed and managed by Zhuji Electrostatic Precipitator Research Institute. This standard was drafted by Zhejiang Electrostatic Precipitator General Factory. The drafters of this standard were Bian Bingmiao and Bian Shimao. People's Republic of China
Mechanical Industry Standard
Specification for Sampling Inspection of Main Parts of Electrostatic Precipitator
and Packaging, Transportation and Storage
JB590891
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing
Postal Code 100081)
No Reproduction
Copyright reserved
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
Sheet 3/4
Word Count 14000
First Edition in February 1992
First Printing in February 1992
Print Quantity 00.001-1000
Price 1.20 Yuan
No. 04981 The shipment of main parts shall comply with the relevant provisions of Article 4.1.3. 4.2.2 The goods must be hoisted according to the marked position, and a reasonable hoisting position should be selected for unmarked workpieces. 4.2.3 The goods must be placed stable, leveled and fastened during transportation. 4.2.4 For stacked goods, wooden blocks should be placed between the workpieces, and the positions of the upper and lower wooden blocks must be reasonably consistent. The distance between the wooden blocks should be greater than one-third of the length of the workpiece.
4.2.5 The center of gravity of the workpiece should be at the bottom when loading the goods. 4.3 Purchase and storage
4.3.1 For on-site storage, the site should be flat, without water accumulation, and no water accumulation is allowed to soak the workpiece. 4.3.2 When storing beams, columns and bottom beams, the bottom surface must be leveled, and no other objects should be stacked on top. 4.3.3 The packaging boxes of plates and wires are allowed to be stacked. There are a maximum of three layers for plates and a maximum of five layers for wires. 4.3.4 Anode plates, cathode wires and cathode small frames should be stored indoors. Rain protection measures must be taken when storing outdoors. 5
JB5908-91
Appendix A
Testing methods for main parts of electrostatic precipitator
(Supplement)
A1 For all main parts of electrostatic precipitator, the size, shape and position tolerances shall be inspected according to the drawings, processes and standard requirements approved by the prescribed procedures. For those without clear requirements in the drawings and processes, they shall be inspected according to the unnoted tolerances in ZBJ88001.3. A2 Inspection of nominal dimensions
Inspection of nominal dimensions shall be measured with 2, 10, 15 and 20m steel tape measures according to their sizes. The tape measures shall be naturally tightened during measurement. For the two end faces with high requirements, a ruler shall be used, and the tape measure at the measuring end shall slide left and right to obtain the actual distance. A3 Inspection of bolt hole spacing
A3.1 For holes that have a matching relationship with each other, the position tolerance of any hole shall not exceed the formula (A1): (Dmin - Damx)
Where: T position tolerance value, mm;
Dmi minimum diameter of the light hole, mm;
Dmx—maximum diameter of the bolt, mm.
A3.2 When measuring the hole position, one hole should be used as the reference. For the hole spacing that is related to each other, continuous measurement should be made. It is not allowed to measure step by step with two holes as units. If the roundness tolerance of the hole is obvious, the error caused by the roundness deviation should be eliminated. A4 Straightness Inspection
A4.1 When measuring the straightness of any component, the measured element should be placed perpendicular to the horizontal plane, that is, vertically. A4.2 Testing tools can use tensioning machine thin steel wire or powder wire, equal height iron, ruler, etc., tighten the steel wire or powder wire, pad equal height iron on both ends, use a ruler to measure the distance between the wire and the actual measured edge, and the difference between the maximum and minimum values is its straightness error. A5' Flatness Test
A5.1 When measuring a larger or longer plane, that is, a plane that needs to be measured with a steel wire or powder wire, the plane must be placed perpendicular to the horizontal plane. A5.2 Testing tools can use tensioning machine thin steel wire or powder wire, equal height iron, steel ruler and feeler gauge, etc. A5.3 When measuring a narrow and long plane (width less than 300mm, length greater than 2000mm), the provisions of Chapter A4 can be used for measurement, and it is required to measure the straightness of several places on the plane, and then find the maximum difference, which is the flatness error of the plane. A5.4 When measuring a large plane, the diagonal method can be used. That is, take a proper point at each of the four corners of the plane, place an equal-height iron, draw the diagonal cross line, measure the gap at the intersection of the two lines, and use the highest diagonal line as the reference, raise the other two diagonal points together (the heightened thickness must be consistent, just the value between the intersections), and then use these four points as the base points, draw lines in the length, width, and diagonal directions, take several points on each line, try to measure the extreme value on the line, and find the difference between the maximum and minimum values of all the measured values, which is the flatness error of the plane. As shown in the figure below, when there is an actual plane W, the ideal plane (i.e., the measurement base plane) is the line connecting the two points A and C (the deviation value of the two points is zero, and the deviation value here has excluded the influence of the equal-height iron) and is parallel to the line connecting the two points A and C (the deviation values of the two points are equal), so the flatness of the plane is 5-(-12)=17.
A5.5·To measure a small plane, you can use a steel ruler (1m) directly against the plane to be measured, and use a feeler gauge to measure the gap size. The maximum value is taken as the flatness error.
A6 Parallelism test
Actual plane W
JB5908—91
A,*A,'-A,'-1A,*+A,'+$
B,*+1 B,'++B,'1B,\-+B,'-1
C,*++ C,*-s C,*+* C, +5. C,**Figure A1
A6.1 Parallelism can be tested using a steel tape measure, steel ruler, powder line, high-speed rail, etc. A6.2 First use a steel ruler or powder line to find the ideal plane of the actual reference surface, then select several points with the ideal plane as the reference point, measure the distance to the measured plane, and find the extreme value difference in the value as the parallelism error of the element. Verticality test
A7.1 Small parts (within 500mm) can be measured with a wide ruler and a feeler gauge. A7.2 For large-scale measurement, steel tape measure, powder line, etc. can be used, and the diagonal method or triangle method can be used for measurement. A8 Anode plate inspection
The anode plate is placed horizontally on the rolling mill roller with a special fixture and perpendicular to the roller plane. A8.2
The inspection method is shown in Chapters A2 to A7. The inspection method for distortion is referred to the provisions of Chapter A7. Cathode line inspection
The cathode line is placed horizontally on a special inspection platform and perpendicular to the inspection platform. The inspection method is shown in Chapters A2 to A7.
During the inspection, a vernier height gauge with an apparent error of 0.02mm is used. Inspection of welding quality
The size and form of the weld should comply with the requirements of the drawing, and the height of the weld leg should be measured with a special weld inspection ruler. The weld joint should comply with the relevant provisions of GB985 and GB986. The weld quality should comply with the provisions of ZBJ88001.3. Surface quality inspection
Before painting, rust removal inspection should be carried out. Combined with the original rust level of the steel surface, the rust removal level should be analyzed and evaluated in accordance with JB/ZQ4000.10.
A11.2 The coating thickness inspection and coating adhesion inspection should be carried out in accordance with the relevant provisions of JB/ZQ4000.10. Additional remarks:
This standard was proposed and managed by Zhuji Electrostatic Precipitator Research Institute. This standard was drafted by Zhejiang Electrostatic Precipitator General Factory. The drafters of this standard were Bian Bingmiao and Bian Shimao. People's Republic of China
Mechanical Industry Standard
Specification for Sampling Inspection of Main Parts of Electrostatic Precipitator
and Packaging, Transportation and Storage
JB590891
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing
Postal Code 100081)
No Reproduction
Copyright reserved
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
Sheet 3/4
Word Count 14000
First Edition in February 1992
First Printing in February 1992
Print Quantity 00.001-1000
Price 1.20 Yuan
No. 04983. Inspection without tolerance. A2 Inspection of nominal dimensions
Inspection of nominal dimensions shall be carried out with 2, 10, 15, and 20 m steel tape measures according to their sizes. The tape measures shall be naturally tightened during measurement. For the two end faces with high requirements, a ruler shall be used, and the tape measure at the measuring end shall slide left and right to obtain the actual distance. A3 Inspection of bolt hole spacing
A3.1 For holes that have a matching relationship with each other, the position tolerance of any hole shall not exceed the formula (A1): (Dmin - Damx)
Where: T position tolerance value, mm;
Dmi minimum diameter of the light hole, mm;
Dmx—maximum diameter of the bolt, mm.
A3.2 When measuring the hole position, one hole shall be used as the reference. For the hole spacing that is related to each other, continuous measurement shall be made. It is not allowed to measure step by step in units of two holes. If the roundness tolerance of the hole is obvious, the error caused by the roundness deviation should be eliminated. A4 Straightness test
A4.1 When measuring the straightness of any component, the measured element should be placed perpendicular to the horizontal plane, that is, vertically. A4.2 The detection tool can use a tensioner fine steel wire or powder wire, a constant height iron, a ruler, etc. Tighten the steel wire or powder wire, pad the constant height iron on both ends, and use a ruler to measure the distance between the wire and the actual measured edge. The difference between the maximum and minimum values is its straightness error. A5' Flatness test
A5.1 When measuring a larger or longer plane, that is, a plane that needs to be measured with a steel wire or powder wire, the surface must be placed perpendicular to the horizontal plane. A5.2 The detection tool can use a tensioner fine steel wire or powder wire, a constant height iron, a steel ruler and a feeler gauge. A5.3 The measurement of narrow and long planes (width less than 300mm, length greater than 2000mm) can be carried out according to the provisions of Chapter A4, and it is required to measure the straightness of several places on the plane, and then find the maximum difference, which is the flatness error of the plane. A5.4 The diagonal method can be used to measure large planes. That is, take an appropriate point at each of the four corners of the plane, place equal-height iron, pull the diagonal cross line, measure the gap at the intersection of the two lines, and use the highest diagonal line as the reference, and raise the other two diagonal points together (the heightening thickness must be consistent, just the value between the intersections), and then use these four points as the base points to pull lines in the length, width, and diagonal directions, and take several points on each line, try to measure the extreme value on the line, and find the difference between the maximum and minimum values of all measured values, which is the flatness error of the plane. As shown in the figure below, when there is an actual plane W, the ideal plane (i.e. the measurement base plane) is the line connecting the two points A and C (the deviation value of the two points is zero, and the deviation value here has excluded the influence of equal high-speed railways) and is parallel to the line connecting the two points A and C (the deviation values of the two points are equal), so the flatness of the plane is 5-(-12)=17.
A5.5·To measure a small plane, a steel ruler (1m) can be used, directly against the measured plane, and the gap size can be measured with a feeler gauge, and the maximum value is taken as the flatness error.
A6 Parallelism test
Actual plane W
JB5908—91
A,*A,'-A,'-1A,*+A,'+$
B,*+1 B,'++B,'1B,\-+B,'-1
C,*++ C,*-s C,*+* C, +5. C,**Figure A1
A6.1 Parallelism can be tested using a steel tape measure, steel ruler, powder line, high-speed rail, etc. A6.2 First use a steel ruler or powder line to find the ideal plane of the actual reference surface, then select several points with the ideal plane as the reference point, measure the distance to the measured plane, and find the extreme value difference in the value as the parallelism error of the element. Verticality test
A7.1 Small parts (within 500mm) can be measured with a wide ruler and a feeler gauge. A7.2 For large-scale measurement, steel tape measure, powder line, etc. can be used, and the diagonal method or triangle method can be used for measurement. A8 Anode plate inspection
The anode plate is placed horizontally on the rolling mill roller with a special fixture and perpendicular to the roller plane. A8.2
The inspection method is shown in Chapters A2 to A7. The inspection method for distortion is referred to the provisions of Chapter A7. Cathode line inspection
The cathode line is placed horizontally on a special inspection platform and perpendicular to the inspection platform. The inspection method is shown in Chapters A2 to A7.
During the inspection, a vernier height gauge with an apparent error of 0.02mm is used. Inspection of welding qualitybzxZ.net
The size and form of the weld should comply with the requirements of the drawing, and the height of the weld leg should be measured with a special weld inspection ruler. The weld joint should comply with the relevant provisions of GB985 and GB986. The weld quality should comply with the provisions of ZBJ88001.3. Surface quality inspection
Before painting, rust removal inspection should be carried out. Combined with the original rust level of the steel surface, the rust removal level should be analyzed and evaluated in accordance with JB/ZQ4000.10.
A11.2 The coating thickness inspection and coating adhesion inspection should be carried out in accordance with the relevant provisions of JB/ZQ4000.10. Additional remarks:
This standard was proposed and managed by Zhuji Electrostatic Precipitator Research Institute. This standard was drafted by Zhejiang Electrostatic Precipitator General Factory. The drafters of this standard were Bian Bingmiao and Bian Shimao. People's Republic of China
Mechanical Industry Standard
Specification for Sampling Inspection of Main Parts of Electrostatic Precipitator
and Packaging, Transportation and Storage
JB590891
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing
Postal Code 100081)
No Reproduction
Copyright reserved
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
Sheet 3/4
Word Count 14000
First Edition in February 1992
First Printing in February 1992
Print Quantity 00.001-1000
Price 1.20 Yuan
No. 04983. Inspection without tolerance. A2 Inspection of nominal dimensions
Inspection of nominal dimensions shall be carried out with 2, 10, 15, and 20 m steel tape measures according to their sizes. The tape measures shall be naturally tightened during measurement. For the two end faces with high requirements, a ruler shall be used, and the tape measure at the measuring end shall slide left and right to obtain the actual distance. A3 Inspection of bolt hole spacing
A3.1 For holes that have a matching relationship with each other, the position tolerance of any hole shall not exceed the formula (A1): (Dmin - Damx)
Where: T position tolerance value, mm;
Dmi minimum diameter of the light hole, mm;
Dmx—maximum diameter of the bolt, mm.
A3.2 When measuring the hole position, one hole shall be used as the reference. For the hole spacing that is related to each other, continuous measurement shall be made. It is not allowed to measure step by step in units of two holes. If the roundness tolerance of the hole is obvious, the error caused by the roundness deviation should be eliminated. A4 Straightness test
A4.1 When measuring the straightness of any component, the measured element should be placed perpendicular to the horizontal plane, that is, vertically. A4.2 The detection tools can use the tensioner fine steel wire or powder wire, equal height iron, ruler, etc. Tighten the steel wire or powder wire, pad the equal height iron on both ends, and use the ruler to measure the distance between the wire and the actual measured edge. The difference between the maximum and minimum values is its straightness error. A5' Flatness test
A5.1 When measuring a larger or longer plane, that is, a plane that needs to be measured with a steel wire or powder wire, the surface must be placed perpendicular to the horizontal plane. A5.2 The detection tools can use the tensioner fine steel wire or powder wire, equal height iron, steel ruler and feeler gauge, etc. A5.3 The measurement of narrow and long planes (width less than 300mm, length greater than 2000mm) can be carried out according to the provisions of Chapter A4, and it is required to measure the straightness of several places on the plane, and then find the maximum difference, which is the flatness error of the plane. A5.4 The diagonal method can be used to measure large planes. That is, take an appropriate point at each of the four corners of the plane, place equal-height iron, pull the diagonal cross line, measure the gap at the intersection of the two lines, and use the highest diagonal line as the reference, and raise the other two diagonal points together (the heightening thickness must be consistent, just the value between the intersections), and then use these four points as the base points to pull lines in the length, width, and diagonal directions, and take several points on each line, try to measure the extreme value on the line, and find the difference between the maximum and minimum values of all measured values, which is the flatness error of the plane. As shown in the figure below, when there is an actual plane W, the ideal plane (i.e. the measurement base plane) is the line connecting the two points A and C (the deviation value of the two points is zero, and the deviation value here has excluded the influence of equal high-speed railways) and is parallel to the line connecting the two points A and C (the deviation values of the two points are equal), so the flatness of the plane is 5-(-12)=17.
A5.5·To measure a small plane, a steel ruler (1m) can be used, directly against the measured plane, and the gap size can be measured with a feeler gauge, and the maximum value is taken as the flatness error.
A6 Parallelism test
Actual plane W
JB5908—91
A,*A,'-A,'-1A,*+A,'+$
B,*+1 B,'++B,'1B,\-+B,'-1
C,*++ C,*-s C,*+* C, +5. C,**Figure A1
A6.1 Parallelism can be tested using a steel tape measure, steel ruler, powder line, high-speed rail, etc. A6.2 First use a steel ruler or powder line to find the ideal plane of the actual reference surface, then select several points with the ideal plane as the reference point, measure the distance to the measured plane, and find the extreme value difference in the value as the parallelism error of the element. Verticality test
A7.1 Small parts (within 500mm) can be measured with a wide ruler and a feeler gauge. A7.2 For large-scale measurement, steel tape measure, powder line, etc. can be used, and the diagonal method or triangle method can be used for measurement. A8 Anode plate inspection
The anode plate is placed horizontally on the rolling mill roller with a special fixture and perpendicular to the roller plane. A8.2
The inspection method is shown in Chapters A2 to A7. The inspection method for distortion is referred to the provisions of Chapter A7. Cathode line inspection
The cathode line is placed horizontally on a special inspection platform and perpendicular to the inspection platform. The inspection method is shown in Chapters A2 to A7.
During the inspection, a vernier height gauge with an apparent error of 0.02mm is used. Inspection of welding quality
The size and form of the weld should comply with the requirements of the drawing, and the height of the weld leg should be measured with a special weld inspection ruler. The weld joint should comply with the relevant provisions of GB985 and GB986. The weld quality should comply with the provisions of ZBJ88001.3. Surface quality inspection
Before painting, rust removal inspection should be carried out. Combined with the original rust level of the steel surface, the rust removal level should be analyzed and evaluated in accordance with JB/ZQ4000.10.
A11.2 The coating thickness inspection and coating adhesion inspection should be carried out in accordance with the relevant provisions of JB/ZQ4000.10. Additional remarks:
This standard was proposed and managed by Zhuji Electrostatic Precipitator Research Institute. This standard was drafted by Zhejiang Electrostatic Precipitator General Factory. The drafters of this standard were Bian Bingmiao and Bian Shimao. People's Republic of China
Mechanical Industry Standard
Specification for Sampling Inspection of Main Parts of Electrostatic Precipitator
and Packaging, Transportation and Storage
JB590891
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing
Postal Code 100081)
No Reproduction
Copyright reserved
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
Sheet 3/4
Word Count 14000
First Edition in February 1992
First Printing in February 1992
Print Quantity 00.001-1000
Price 1.20 Yuan
No. 0498**Figure A1
A6.1 Parallelism can be detected by using steel tape measure, steel ruler, powder line, high-speed rail, etc. A6.2 First use a steel ruler or powder line to find the ideal plane of the actual reference surface, then select several points with the ideal plane as the reference point, measure the distance to the measured plane, and find the extreme value difference in the value as the parallelism error of the element. Verticality inspection
A7.1 Small pieces (within 500mm) can be measured with a wide ruler and a feeler gauge. A7.2 For large pieces, steel tape measure, powder line, etc. can be used, and the diagonal method or triangle method can be used for measurement. A8 Anode plate inspection
The anode plate is placed horizontally on the rolling mill roller with a special fixture and perpendicular to the roller plane. A8.2
The inspection method is shown in Chapters A2 to A7. The inspection method for distortion refers to the provisions of Chapter A7. Cathode line inspection
The cathode line is placed horizontally on a special inspection platform and perpendicular to the inspection platform. For inspection methods, see Chapters A2 to A7.
During inspection, a vernier height gauge with an apparent error of 0.02mm is used. Inspection of welding quality
The size and form of the weld should comply with the requirements of the drawing, and the height of the weld leg should be measured with a special weld inspection ruler. The weld joint should comply with the relevant provisions of GB985 and GB986. The weld quality should comply with the provisions of ZBJ88001.3. Inspection of surface quality
Rust removal should be checked before painting, and the rust removal A11.1
grade should be analyzed and evaluated in accordance with JB/ZQ4000.10 in combination with the original rust level of the steel surface.
A11.2 The inspection of coating thickness and coating adhesion should be carried out in accordance with the relevant provisions of JB/ZQ4000.10. Additional remarks:
This standard was proposed and managed by Zhuji Electrostatic Precipitator Research Institute. This standard was drafted by Zhejiang Electrostatic Precipitator General Factory. The drafters of this standard are Bian Bingmiao and Bian Shimao. People's Republic of China
Mechanical Industry Standard
Specification for Sampling Inspection of Main Parts of Electrostatic Precipitator
and Packaging, Transportation and Storage
JB590891
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing
Postal Code 100081)
No Reproduction
Copyright reserved
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
Sheet 3/4
Word Count 14000
First Edition in February 1992
First Printing in February 1992
Print Quantity 00.001-1000
Price 1.20 Yuan
No. 0498**Figure A1
A6.1 Parallelism can be tested by using steel tape measure, steel ruler, powder line, high-speed rail, etc. A6.2 First use a steel ruler or powder line to find the ideal plane of the actual reference surface, then select several points with the ideal plane as the reference point, measure the distance to the measured plane, and find the extreme difference in the value as the parallelism error of the element. Verticality inspection
A7.1 Small pieces (within 500mm) can be measured with a wide ruler and a feeler gauge. A7.2 For large pieces, steel tape measure, powder line, etc. can be used, and the diagonal method or triangle method can be used for measurement. A8 Anode plate inspection
The anode plate is placed horizontally on the rolling mill roller with a special fixture and perpendicular to the roller plane. A8.2
The inspection method is shown in Chapters A2 to A7. The inspection method for distortion refers to the provisions of Chapter A7. Cathode line inspection
The cathode line is placed horizontally on a special inspection platform and perpendicular to the inspection platform. For inspection methods, see Chapters A2 to A7.
During inspection, a vernier height gauge with an apparent error of 0.02mm is used. Inspection of welding quality
The size and form of the weld should comply with the requirements of the drawing, and the height of the weld leg should be measured with a special weld inspection ruler. The weld joint should comply with the relevant provisions of GB985 and GB986. The weld quality should comply with the provisions of ZBJ88001.3. Inspection of surface quality
Rust removal should be checked before painting, and the rust removal A11.1
grade should be analyzed and evaluated in accordance with JB/ZQ4000.10 in combination with the original rust level of the steel surface.
A11.2 The inspection of coating thickness and coating adhesion should be carried out in accordance with the relevant provisions of JB/ZQ4000.10. Additional remarks:
This standard was proposed and managed by Zhuji Electrostatic Precipitator Research Institute. This standard was drafted by Zhejiang Electrostatic Precipitator General Factory. The drafters of this standard are Bian Bingmiao and Bian Shimao. People's Republic of China
Mechanical Industry Standard
Specification for Sampling Inspection of Main Parts of Electrostatic Precipitator
and Packaging, Transportation and Storage
JB590891
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing
Postal Code 100081)
No Reproduction
Copyright reserved
Printed by Printing Factory, Qinghe County, Hebei Province
Format 880×1230
Sheet 3/4
Word Count 14000
First Edition in February 1992
First Printing in February 1992
Print Quantity 00.001-1000
Price 1.20 Yuan
No. 0498
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